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gray: indicates the DIP positions through which individual functions/configuration
settings are selected
After setting all DIP switch positions to represent the 0/1 sequence of the desired function
(as described in figure 2), the push button has to be pressed to execute the desired
function. Execution of the function is indicated by the LED remaining green until the
function has been properly executed, in which case the LED returns to blinking alternately
green and red.
5
CONFIGURATION SINGLE ROD PROBE AND ROPE PROBE
For most applications, executing the three basic configuration steps below is sufficient to
achieve a fully functional sensor; providing a continuous level measurement through its
analog current output.
5.1
Perform disturbance signal scan
LTDR has to be mounted in its final position and the tank has to be completely empty in
order to perform a disturbance signal scan
set the DIP switch positions to the 0/1 sequence in figure 6. Start from position 8 and
move towards position 1.
DIP SWITCH POSITION
1
DIP SWITCH SETTINGS
0
LED will blink alternately green and red.
Press the push button.
LED will remain green for a few seconds while the disturbance signal scan is being
performed.
Once the scan is completed successfully, the LED will return to blinking alternately
green and red.
5.2
Lower range value [4mA]; SPAN 0%
Fill the liquid into the tank up to the level where you want to position the lower range
value [4mA]; span 0%.
It is recommended that the lower range value stays within the measuring range [M].
Change DIP switch position 6 to off/0.
DIP SWITCH POSITION
1
DIP SWITCH SETTINGS
0
Press the push button.
LED will remain green briefly while the lower range value setting is being executed.
Once it has been executed successfully, the LED will return to blinking alternately green
and red.
5.3
Upper range value [20mA]; SPAN 100%
Raise the liquid inside the tank up to the level where you want to position the upper
range value [20mA]; span 100%.
8
2
3
4
5
6
7
0
0
1
0
1
1
2
3
4
5
6
7
0
0
1
0
0
1
8
DESCRIPTION
1
perform disturbance scan
8
DESCRIPTION
1
lower range value [4mA]; SPAN 0%
Figure 6
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